Arrangement for high-frequency signaling on high-tension lines

ABSTRACT

181,012. Ges. f³r Drahtlose Telegraphie. June 1, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Transformers; condensers.-In signalling over high-potential lines by means of high-frequency oscillations, the operators and the receiving and transmitting apparatus are protected by the interposition of an insulating shield. This may be placed between the coils of a transformer, or may constitute the dielectric of a condenser. It may be used as a switchboard or carrier for the parts of the apparatus.

Oct. 26, 1926.

E. MAYER ARRANGEMENT FOR HIGH FREQUENCY SIGNALING 0N HIGH TENSION LINES Filed August 8, 1922 II/IIIII/IIIIIIIIIIIIII IIIIIIIL III/IIIIIIIIIIIIIIIIIIIIIIIII Patented 04. 26, 1926.

UNITED STATES- PATENT. OFFICE.

EMIL MAYER, OF BERLIN, GERMANY, ASSIGNOE TO GESELLSOHAFT DRAHTLOSE TELEGRAPHIE M. B. H. HALLESCHES, OF BERLIN, GERMANY, A CORPORATION OF GERMANY. I

ARRANGEMENT r'org nren-rnneunnoy SIGNALING 0N HIGH-TENSION LINES.

Application filed August 8, 1922, Serial No. 580,517, and in Germany June 1, 1921.

In the use of transmitters and receivers for wireless telegraphy and telephony, which transmit orreceive energy along an existing high tension line, there is always a possibility that high tension current will,

mitter or receiver energetically directly or indirectly to the high tension line, a protect ing means is placed. This means consists, for instance, of a plate sufliciently insulating the high tension current and placed between the primary and the secondary windings. of transformers by which the transmitter or receiver is coupled to the high tension line. The invention can also be utilized insuch a way that this protecting plate is made the base plate of a switch board, in which case the conduitsto the high tension line or to the transmitting antennae are placed on one side of the switch board, while on the other side, preferably on the front side, only the secondary winding and the radio frequency transmitting or receiving apparatus are, mounted.

The invention 'may also be embodied in an arrangement which includes a capacitive coupling between the transmitting or receiving apparatus in which case the insulating plate, which may again be in the form of a switch board, forms the dielectric of the coupling condensers.

- 'Upon the accompanying drawing several tension line is inductively coupled to the modes of carrying out the invention are shown.

Figure 1 of the drawing is a diagrammatic representationof an arrangement embodying the invention, and in which the high transmitter or receiver; k

Figure 2 is a view similar to Figure 1, but showing a capacitive coupling between the high tension line and the transmitter or re ceiver;

Figure 3 IS a new in front elevat on of an insulating plate employed in' accordance with the invention and constructed in the form of a switchboard; and

Figure 4 is an end view of the arrangement shown in Figure 3.

In Figure 1, 1 denotes the primary and 2 the secondary winding, for instance, of a .high tension transformer. 3 is an insulating plate which is placed between the two windings. The winding 1 is connected to the high tension transmission line while the winding 2 is connected to the radioapparatus. v

In Figure 2 a plate =6 connected,-' for ing stance, to thehigh tension-line is separated by aninsulating plate3 from a, plate 7 conneeted to the transmitter orreceiver, thus constituting a capacitive coupling between the transmitter 'or receiver and the high tension line.

The reference'character' in Figs. 3 and 4 designates a measuring instrument, such, for example, asan ammeter for. measurlng the current supphed from the radio trans mitter 9 to the coil 10 supported on the front side of the base plate 3 of the switchboard. The base plate 3 of the switchboard is composed of insulating material and on the opposite side of the plate 3 from the coil 10 is a coil 12 supported by clamps 5 and connected to the high tension line. The-coils 10 and 12 on the switch board may be replacedby plates and 6, shown in Fig. 2, which may be mounted on the base plate 3 As shown in Figs. 3 and 4 the high tension line is supported on one side of the'switchboard-:3, while the radio apparatus comprisj of the switchboard in any suitable manner.

high tension line, for the radio apparatus,

and also the coupling coils, thereby insuring a complete and safe dielectric barrier be,

tween thehigh tension line and the radio apparatus precluding any danger of getting the high potential of the transmission line into the radio apparatus. At the same time there is a good coupling between radio ap- 1paratus and the high tension transmission Having described my invention, what I- claim is:

1. In an apparatus of the class described, a high tension line, a switchboard to which the high tension line is connected, and an electromagnetic wave transmitter also connected with the switchboard, said switch board being formed of insulating material and being arranged to insulate the transmitter from the high tension line so as to protect the operator of the transmitter from injury by the high tension current.

2. In an apparatus of the class described, a high'tension line electromagnetic wave apparatus, and a switchboard to which the high tension line and the electromagnetic wave apparatus are respectively connected, said switchboard being formed of insulating materialso as to protect the operator of the P electromagnetic wave apparatus from injury by current from the high tension line.

3. In an apparatus of the class described,

a high tension line, a coil to which the high tension line is connected, a switchboard upon which said coil is mounted, a second coil mounted on the opposite side of the switch board from the first-mentioned coil, electromagnetic wave transmitter connected with said second coil, and a measuring instrument supporting board, a transmission line conductor supported by one side of said board, electromagnetic wave apparatus on the other side of said board and means for coupling said transmission line conductor and said electromagnetic wave apparatus together in such manner that the board precludes the access of the transmission line voltage to the electromagnetic wave apparatus.

5. In apparatus of the class described, a supporting board, a transmissionline conductor on one side of said board, electromagnetic wave apparatus supported by'the other side of said board, and means for coupling said transmission line conductor and said electromagnetic wave apparatus together in such manner that the said board precludes the access of the transmission line voltage to the electromagnetic wave apparatus.

6. In apparatus of the class described, a supporting board, a transmission line on one side of the board, electromagnetic wave apparatus on the other side of said board and means supported by said board for coupling said. transmission line and said electromagnetic wave apparatus in such manner that said board precludes access of the transmission line voltage to the electromagnetic wave apparatus. i

7. In apparatus of the class described, a switchboard of dielectric material, a transmission line conductor supported by one side of said switchboard, electromagnetic wave apparatus supported by the other side of said switchboard, and coils inductively coupled to each other, one coil being supported by one side of the said switchboard and connected to said conductor, and the other coil being supported by the other side of said switchboard and connected to said electromagnetic wave apparatus.

In testimony whereof I have signed my name to this specification.

' DR. EMIL MAYER. 

